Download Apache ANT at the same path as the buildozer.spec android.ant_path option

[robertpro]

ANT installation path was hardcoded so if you changed the installation path, it will download every time you run buildozer android XXX

# Android ANT is missing, downloading
# Downloading http://archive.apache.org/dist/ant/binaries/apache-ant-1.9.4-bin.tar.gz
# Run 'tar xzf apache-ant-1.9.4-bin.tar.gz'
# Cwd /home/roberto/.buildozer/android/platform
# Apache ANT installation done.

I am sorry, I did not found any easy way to test this change since it will download ANT which we don't want that on testing

[AndreMiras]

Thanks that sounds relevant.
Thanks for mentioning tests, by the way, yes there's probably a way to test it with unittest.mock if you mock.patch both buildozer.download() and buildozer.file_extract() and verify it was called with the expected params.

Anyway the PR looks fine, but I still want to give it a try before merging. In the meantime if you want to give unit tests a try, feel free 😄

[robertpro]

Thanks @AndreMiras, I learned something new :) please review!

[inclement]

Thanks @robertpro, sorry for the delay merging this.